Dual-band communication satellite system and method
First Claim
1. A satellite system for providing dual-band satellite coverage using a spot beam layout for a satellite coverage perimeter, the system comprising:
- an array of feeds, the array including;
a plurality of single band feeds, the single band feeds generating first frequency band spot beams, andone or more multi-band feeds each generating a first frequency band spot beam and a second frequency band spot beam concentric with the first frequency band spot beam for collectively providing the dual-band satellite coverage, the first frequency band spot beam having a different beamwidth than the second frequency band spot beam, wherein the number of multi-band feeds is different than the number of single band feeds; and
a shared reflector for the array of feeds.
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Accused Products
Abstract
Dual-band satellite communication systems and methods are described. A dual-band satellite communication system is described with an array of feeds. The array includes single band feeds and one or more multi-band feeds. The multi-band feeds provide dual-band spot beams. Dual-band spot beams include a first frequency band spot beam and a second frequency band spot beam. A spot beam layout may be provided when a shared reflector for the array of feeds is provided. The first frequency band beamwidth may be smaller than a second frequency band beamwidth and the number of multi-band feeds in the array of feeds may be less than the number of single band feeds.
15 Citations
24 Claims
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1. A satellite system for providing dual-band satellite coverage using a spot beam layout for a satellite coverage perimeter, the system comprising:
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an array of feeds, the array including; a plurality of single band feeds, the single band feeds generating first frequency band spot beams, and one or more multi-band feeds each generating a first frequency band spot beam and a second frequency band spot beam concentric with the first frequency band spot beam for collectively providing the dual-band satellite coverage, the first frequency band spot beam having a different beamwidth than the second frequency band spot beam, wherein the number of multi-band feeds is different than the number of single band feeds; and a shared reflector for the array of feeds. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for providing dual-band satellite coverage using a spot beam layout for a satellite coverage perimeter, the method comprising:
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determining a reflector size for an array of feeds, the array generating first frequency band spot beams, each first frequency band spot beam having a first beamwidth; configuring the array to include single band feeds to generate the first frequency band spot beams for the satellite coverage perimeter; based on the determined reflector size, determining a second beamwidth for second frequency band spot beams, the second beamwidth being different than the first beamwidth; and allocating one or more feeds in the array as multi-band feeds to generate dual-band spot beams, each of the dual-band spot beams including a first frequency band spot beam and a second frequency band spot beam concentric with the first frequency band spot beam for collectively providing the dual-band satellite coverage, wherein the number of multi-band feeds is different than the number of single band feeds. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification